fix: update cache storage for pre-rendering phase

playground/app/pages/cached.vue

@@ -0,0 +1,7 @@
+<script setup>
+const { data } = await useFetch('/api/cached')
+</script>
+
+<template>
+  <pre>{{ data }}</pre>
+</template>

playground/nuxt.config.ts

@@ -37,6 +37,10 @@ export default defineNuxtConfig({
     // projectUrl: ({ branch }) => branch === 'main' ? 'https://playground.nuxt.dev' : `https://${encodeHost(branch).replace(/\//g, '-')}.playground-to39.pages.dev`
   },
 
+  routeRules: {
+    '/cached': { prerender: true }
+  },
+
   basicAuth: {
     enabled: process.env.NODE_ENV === 'production',
     allowedRoutes: ['/api/_hub/'],

src/features.ts

@@ -1,5 +1,6 @@
 import { execSync } from 'node:child_process'
 import type { Nuxt } from '@nuxt/schema'
+import { join } from 'pathe'
 import { logger, addImportsDir, addServerImportsDir, addServerScanDir, createResolver } from '@nuxt/kit'
 import { joinURL } from 'ufo'
 import { defu } from 'defu'
@@ -165,6 +166,15 @@ export async function setupCache(nuxt: Nuxt) {
       }
     }
   })
+  nuxt.hooks.hook('nitro:init', (nitro) => {
+    nitro.hooks.hook('prerender:config', (config) => {
+      config.devStorage ||= {}
+      config.devStorage.cache = {
+        driver: 'fs',
+        base: join(nuxt.options.rootDir, '.data/cache')
+      }
+    })
+  })
 
   // Add Server scanning
   addServerScanDir(resolve('./runtime/cache/server'))